Dave Salway
Member
?Is there a way to check H. P
of a H with out a dino to see
how well tractor is performing ?
of a H with out a dino to see
how well tractor is performing ?
- Thread starter Dave Salway
- Start date
A. Don't know the first foggiest thing about it.
B. But that's never stopped me. Wouldn't a compression test tell you exactly that? The unit operates off the compression powering the tractor forward, seems like get 'er hot, borrow a compressions tester from O'Reillys', and go to it. I'd imagine good even 125 psi compression would corresponnd to the 25 HP rating, or so.
B. But that's never stopped me. Wouldn't a compression test tell you exactly that? The unit operates off the compression powering the tractor forward, seems like get 'er hot, borrow a compressions tester from O'Reillys', and go to it. I'd imagine good even 125 psi compression would corresponnd to the 25 HP rating, or so.
If the ground is still in good condition where you are find a plow and hook it up. The H would pull a 2-14" plow in most conditions. Usually in second gear without much strain. If working it is not possible then a dealer would be willing to dyno it for a service charge. If you live reasonably close you can drive the tractor there and save the trucking charge. Compression test will not tell the full story as timing,spark, and the air/fuel mixture factor in too.
Nebraska Cowman
Well-known Member
The Prony Brake was developed to measure horsepower on a rotating shaft. It uses a scale to register pounds of force and then you use the RPM of the shaft with a formula to obtain results. If you have a large pull scale (dynamometer) you can measure drawbar horsepower by multiplying pounds pulled times speed in MPH divided by 375. Those would be the two most accurate methods.
Best or only way to really know is to hook to a dyno.Drive(or haul) the tractor to the nearest shop with a dyno and find out. Most shops will gladly test for the normal shop rate.Usuually one hour will cover it.BTW,Last year I took my 1256 to be tested.They charged an hour.It was a healthy 130 HP.And you should have seen the 'coal'roll!
Janicholson
Well-known Member
If a neighbor has a similar HP tractor, (and is a friend) hook it to their equipment and compare notes. Plow allong with another H or bush hog next to one then swap hogs to tell the tale. Jim
Nebraska Cowman
Well-known Member
Dave, did you get my email? I have your parts ready to go.
Dave Salway
Member
Sorry just saw email and sent replay back
Thanks Dave
Thanks Dave
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